Sending Ordinary Messages in a Group

{
  "GroupId": "@TGS#2C5SZEAEF",
  "Random": 8912345, // A random number. If the random numbers of two messages are the same within five minutes, they are considered to be the same message.
  "MsgBody": [ // Message body, which consists of an element array. For details, see the field description.
      {
          "MsgType": "TIMTextElem", // Text
          "MsgContent": {
              "Text": "red packet"
          }
      },
      {
          "MsgType": "TIMFaceElem", // Emoji
          "MsgContent": {
              "Index": 6,
              "Data": "abc\u0000\u0001"
          }
      }
  ],
  "CloudCustomData": "your cloud custom data",
  "SupportMessageExtension": 0,
  "OfflinePushInfo": {
      "PushFlag": 0, // Normal push
      "Desc": "Content to push offline",
      "Ext": "Passthrough content",
      "AndroidInfo": {
          "Sound": "android.mp3"
      },
      "ApnsInfo": {
          "Sound": "apns.mp3",
          "BadgeMode": 1, // If this field is left as default or is set to `0`, the message is counted. If this field is set to `1`, the message is not counted, that is, the icon number in the upper-right corner does not increase.
          "Title":"apns title", // APNs title
          "SubTitle":"apns subtitle", // APNs subtitle
          "Image":"www.image.com" // Image URL
      }
  }
}

{
  "GroupId": "@TGS#2C5SZEAEF",
  "From_Account": "leckie", // Message sender (optional)
  "Random": 8912345, // A random number. If the random numbers of two messages are the same within five minutes, they are considered to be the same message.
  "MsgBody": [ // Message body, which consists of an element array. For details, see the field description.
      {
          "MsgType": "TIMTextElem", // Text
          "MsgContent": {
              "Text": "red packet"
          }
      },
      {
          "MsgType": "TIMFaceElem", // Emoji
          "MsgContent": {
              "Index": 6,
              "Data": "abc\u0000\u0001"
          }
      }
  ]
}

{
  "GroupId":"@TGS#12DEVUDHQ",
  "Random":2784275388,
  "MsgBody":[
      {
          "MsgType":"TIMCustomElem",
          "MsgContent":{
              "Data":"1cddddddddq1"
          }
      }
  ],
  "To_Account":["brennanli2", "brennanli3"] // Specify the message recipient (up to 50 recipients can be specified). If this field is used, the message is excluded from the unread count.
}

{
   "GroupId": "@TGS#2C5SZEAEF",
   "Random": 8912345, // A random number. If the random numbers of two messages are the same within five minutes, they are considered to be the same message.
   "SendMsgControl":["NoLastMsg"],// Do not trigger conversation update.
   "MsgBody": [ // Message body, which consists of an element array. For details, see the field description.
       {
           "MsgType": "TIMTextElem", // Text
           "MsgContent": {
               "Text": "red packet"
           }
       },
       {
           "MsgType": "TIMFaceElem", // Emoji
           "MsgContent": {
               "Index": 6,
               "Data": "abc\u0000\u0001"
           }
       }
   ]
 }

{
  "GroupId": "@TGS#2C5SZEAEF",
  "Random": 8912345, // A random number. If the random numbers of two messages are the same within five minutes, they are considered to be the same message.
  "MsgPriority": "High", // Message priority
  "MsgBody": [ // Message body, which consists of an element array. For details, see the field description.
      {
          "MsgType": "TIMTextElem", // Text
          "MsgContent": {
              "Text": "red packet"
          }
      },
      {
          "MsgType": "TIMFaceElem", // Emoji
          "MsgContent": {
              "Index": 6,
              "Data": "abc\u0000\u0001"
          }
      }
  ]
}

{
  "GroupId": "@TGS#2C5SZEAEF",
  "Random": 8912345, // A random number. If the random numbers of two messages are the same within five minutes, they are considered to be the same message.
  "ForbidCallbackControl":[
          "ForbidBeforeSendMsgCallback",
          "ForbidAfterSendMsgCallback"], // Callback forbidding control option
  "MsgBody": [ // Message body, which consists of an element array. For details, see the field description.
      {
          "MsgType": "TIMTextElem", // Text
          "MsgContent": {
              "Text": "red packet"
          }
      },
      {
          "MsgType": "TIMFaceElem", // Emoji
          "MsgContent": {
              "Index": 6,
              "Data": "abc\u0000\u0001"
          }
      }
  ]
}

    {
        "GroupId": "@TGS#2C5SZEAEF",
        "Random": 8912345, // A random number. If the random numbers of two messages are the same within five minutes, they are considered to be the same message.
        "MsgBody": [ // Message body, which consists of an element array. For details, see the field description.
            {
                "MsgType": "TIMTextElem", // Text
                "MsgContent": {
                    "Text": "red @all @tommy @brennanli packet"
                }
            }
        ],
        // It corresponds to @all @tommy @brennanli in the text information.
        "GroupAtInfo":[
        {
            "GroupAtAllFlag":1 // `1`: @ all ; `0`: @ a certain group member
        },
        {
            "GroupAtAllFlag":0,
            "GroupAt_Account":"tommy" // @ a specific group member
        },
        {
            "GroupAtAllFlag":0,
            "GroupAt_Account":"brennanli"
        }
     ]    
    }

  {
      "GroupId": "@TGS#2C5SZEAEF",
      "Random": 8912345, // A random number. If the random numbers of two messages are the same within five minutes, they are considered to be the same message.
      "OnlineOnlyFlag": 1, // The message is for online delivery only (only online group members will receive it), not for offline or roaming retention.
      "MsgBody": [ // Message body, which consists of an element array. For details, see the field description.
          {
              "MsgType": "TIMTextElem", // Text
              "MsgContent": {
                  "Text": "red packet"
              }
          },
          {
              "MsgType": "TIMFaceElem", // Emoji
              "MsgContent": {
                  "Index": 6,
                  "Data": "abc\u0000\u0001"
              }
          }
      ]
  }